Understanding the unique S-scheme charge migration in triazine/heptazine crystalline carbon nitride homojunction
University of Electronic Science and Technology of China · State Ethnic Affairs Commission
Abstract
Abstract Understanding charge transfer dynamics and carrier separation pathway is challenging due to the lack of appropriate characterization strategies. In this work, a crystalline triazine/heptazine carbon nitride homojunction is selected as a model system to demonstrate the interfacial electron-transfer mechanism. Surface bimetallic cocatalysts are used as sensitive probes during in situ photoemission for tracing the S-scheme transfer of interfacial photogenerated electrons from triazine phase to the heptazine phase. Variation of the sample surface potential under light on/off confirms dynamic S-scheme charge transfer. Further theoretical calculations demonstrate an interesting reversal of interfacial…
Citation impact
- FWCI
- 15.00
- Percentile
- 100%
- References
- 63
Authors
6- FLFang Li
University of Electronic Science and Technology of China
- XYXiaoyang Yue
University of Electronic Science and Technology of China
- YLYulong Liao
University of Electronic Science and Technology of China
- LQLiang QiaoCorresponding
University of Electronic Science and Technology of China
- KLKangle LvCorresponding
State Ethnic Affairs Commission
Topics & keywords
- Homojunction
- Materials science
- Electron transfer
- Chemical physics
- Carbon nitride
- Nanotechnology
- Optoelectronics
- Chemistry